src/mathed/MathFactory.cpp

   1 /**
   2  * \file MathFactory.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author André Pönitz
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "MathFactory.h"
  14
  15 #include "InsetMathAMSArray.h"
  16 #include "InsetMathArray.h"
  17 #include "InsetMathBoldSymbol.h"
  18 #include "InsetMathBox.h"
  19 #include "InsetMathCancel.h"
  20 #include "InsetMathCancelto.h"
  21 #include "InsetMathCases.h"
  22 #include "InsetMathClass.h"
  23 #include "InsetMathColor.h"
  24 #include "InsetMathDecoration.h"
  25 #include "InsetMathDots.h"
  26 #include "InsetMathEnsureMath.h"
  27 #include "InsetMathFont.h"
  28 #include "InsetMathFontOld.h"
  29 #include "InsetMathFrac.h"
  30 #include "InsetMathKern.h"
  31 #include "InsetMathLefteqn.h"
  32 #include "InsetMathOverset.h"
  33 #include "InsetMathPhantom.h"
  34 #include "InsetMathRef.h"
  35 #include "InsetMathRoot.h"
  36 #include "InsetMathSideset.h"
  37 #include "InsetMathSize.h"
  38 #include "InsetMathSpace.h"
  39 #include "InsetMathSpecialChar.h"
  40 #include "InsetMathSplit.h"
  41 #include "InsetMathSqrt.h"
  42 #include "InsetMathStackrel.h"
  43 #include "InsetMathSubstack.h"
  44 #include "InsetMathSymbol.h"
  45 #include "InsetMathTabular.h"
  46 #include "InsetMathUnderset.h"
  47 #include "InsetMathUnknown.h"
  48 #include "InsetMathHull.h"
  49 #include "InsetMathXArrow.h"
  50 #include "InsetMathXYMatrix.h"
  51 #include "InsetMathDiagram.h"
  52 #include "MacroTable.h"
  53 #include "InsetMathMacro.h"
  54 #include "InsetMathMacroArgument.h"
  55 #include "MathParser.h"
  56 #include "MathStream.h"
  57 #include "MathSupport.h"
  58
  59 #include "insets/InsetCommand.h"
  60 #include "insets/InsetSpace.h"
  61
  62 #include "support/debug.h"
  63 #include "support/docstream.h"
  64 #include "support/FileName.h"
  65 #include "support/filetools.h" // LibFileSearch
  66 #include "support/lstrings.h"
  67 #include "support/textutils.h"
  68
  69 #include "frontends/FontLoader.h"
  70
  71 #include "Buffer.h"
  72 #include "BufferParams.h"
  73 #include "Encoding.h"
  74 #include "LyX.h" // use_gui
  75 #include "OutputParams.h"
  76
  77 #include <iomanip>
  78
  79 using namespace std;
  80 using namespace lyx::support;
  81
  82 namespace lyx {
  83
  84 bool has_math_fonts;
  85
  86
  87 namespace {
  88
  89 MathWordList theMathWordList;
  90
  91
  92 bool isMathFontAvailable(string & name)
  93 {
  94         if (!use_gui)
  95                 return false;
  96
  97         FontInfo f;
  98         augmentFont(f, name);
  99
 100         // Do we have the font proper?
 101         if (theFontLoader().available(f))
 102                 return true;
 103
 104         // can we fake it?
 105         if (name == "eufrak") {
 106                 name = "lyxfakefrak";
 107                 return true;
 108         }
 109
 110         LYXERR(Debug::MATHED,
 111                 "font " << name << " not available and I can't fake it");
 112         return false;
 113 }
 114
 115
 116 bool canBeDisplayed(char_type c)
 117 {
 118         if (!use_gui)
 119                 return true;
 120         return theFontLoader().canBeDisplayed(c);
 121 }
 122
 123
 124 bool isUnicodeSymbolAvailable(docstring const & name, char_type & c)
 125 {
 126         docstring cmd(from_ascii("\\") + name);
 127         bool is_combining;
 128         bool termination;
 129         c = Encodings::fromLaTeXCommand(cmd, Encodings::MATH_CMD,
 130                                         is_combining, termination);
 131         if (c == 0 && name == "varOmega") {
 132                 // fallback for bug 7954, unicodesymbols does not list
 133                 // \\varOmega because of requirements, but this might change
 134                 cmd = from_ascii("\\mathit{\\Omega}");
 135                 c = Encodings::fromLaTeXCommand(cmd, Encodings::MATH_CMD,
 136                                                 is_combining, termination);
 137         }
 138         return c != 0 && !is_combining;
 139 }
 140
 141
 142 void initSymbols()
 143 {
 144         FileName const filename = libFileSearch(string(), "symbols");
 145         LYXERR(Debug::MATHED, "read symbols from " << filename);
 146         if (filename.empty()) {
 147                 lyxerr << "Could not find symbols file" << endl;
 148                 return;
 149         }
 150
 151         ifstream fs(filename.toFilesystemEncoding().c_str());
 152         // limit the size of strings we read to avoid memory problems
 153         fs >> setw(65636);
 154         string line;
 155         bool skip = false;
 156         while (getline(fs, line)) {
 157                 int charid     = 0;
 158                 int dsp_charid = 0;
 159                 int fallbackid = 0;
 160                 if (line.empty() || line[0] == '#')
 161                         continue;
 162
 163                 // special case of iffont/else/endif
 164                 if (line.size() >= 7 && line.substr(0, 6) == "iffont") {
 165                         istringstream is(line);
 166                         // limit the size of strings we read to avoid memory problems
 167                         is >> setw(65636);
 168                         string tmp;
 169                         is >> tmp;
 170                         is >> tmp;
 171                         skip = !isMathFontAvailable(tmp);
 172                         continue;
 173                 } else if (line.size() >= 4 && line.substr(0, 4) == "else") {
 174                         skip = !skip;
 175                         continue;
 176                 } else if (line.size() >= 5 && line.substr(0, 5) == "endif") {
 177                         skip = false;
 178                         continue;
 179                 } else if (skip)
 180                         continue;
 181
 182                 // special case of pre-defined macros
 183                 if (line.size() > 8 && line.substr(0, 5) == "\\def\\") {
 184                         //lyxerr << "macro definition: '" << line << '\'' << endl;
 185                         // syntax: Either
 186                         // \def\macroname{definition}
 187                         // or
 188                         // \def\macroname{definition} requires
 189                         // or
 190                         // \def\macroname{definition} extra htmlname xmlname requires
 191                         istringstream is(line);
 192                         string macro;
 193                         string required;
 194                         string extra;
 195                         string htmlname;
 196                         string xmlname;
 197                         bool hidden = false;
 198                         is >> setw(65536) >> macro >> required;
 199                         if ((is >> htmlname >> xmlname)) {
 200                                 extra = required;
 201                                 if (!(is >> required))
 202                                         required = "";
 203                         } else
 204                                 htmlname = xmlname = "";
 205                         MacroTable::iterator it = MacroTable::globalMacros().insert(
 206                                         0, from_utf8(macro));
 207                         if (!extra.empty() || !htmlname.empty() || !xmlname.empty() || !required.empty()) {
 208                                 MathWordList::iterator wit = theMathWordList.find(it->first);
 209                                 if (wit != theMathWordList.end())
 210                                         LYXERR(Debug::MATHED, "readSymbols: inset "
 211                                                 << to_utf8(it->first) << " already exists.");
 212                                 else {
 213                                         latexkeys tmp;
 214                                         tmp.inset = "macro";
 215                                         tmp.name = it->first;
 216                                         tmp.extra = from_utf8(extra);
 217                                         tmp.htmlname = from_utf8(htmlname);
 218                                         tmp.xmlname = from_utf8(xmlname);
 219                                         if (required == "hiddensymbol") {
 220                                                 required = "";
 221                                                 tmp.hidden = hidden = true;
 222                                         } else
 223                                                 tmp.required = required;
 224                                         theMathWordList[it->first] = tmp;
 225                                         wit = theMathWordList.find(it->first);
 226                                         it->second.setSymbol(&(wit->second));
 227                                 }
 228                         }
 229                         // If you change the following output, please adjust
 230                         // development/tools/generate_symbols_images.py.
 231                         LYXERR(Debug::MATHED, "read symbol '" << to_utf8(it->first)
 232                             << "  inset: macro"
 233                             << "  draw: 0"
 234                             << "  extra: " << extra
 235                             << "  html: " << htmlname
 236                             << "  xml: " << xmlname
 237                                 << "  requires: " << required
 238                                 << "  hidden: " << hidden << '\'');
 239                         continue;
 240                 }
 241
 242                 idocstringstream is(from_utf8(line));
 243                 latexkeys tmp;
 244                 docstring help;
 245                 is >> tmp.name >> help;
 246                 tmp.inset = to_ascii(help);
 247                 if (isFontName(tmp.inset)) {
 248                         is >> help >> fallbackid >> tmp.extra >> tmp.htmlname >> tmp.xmlname;
 249                         docstring cid, dsp_cid;
 250                         idocstringstream is2(subst(help, '|', ' '));
 251                         is2 >> charid >> dsp_charid;
 252                 } else
 253                         is >> tmp.extra;
 254                 // requires is optional
 255                 if (is) {
 256                         if ((is >> help)) {
 257                                 // backward compatibility
 258                                 if (help == "esintoramsmath")
 259                                         tmp.required = "esint|amsmath";
 260                                 else
 261                                         tmp.required = to_ascii(help);
 262                         }
 263                 } else {
 264                         LYXERR(Debug::MATHED, "skipping line '" << line << "'\n"
 265                                 << to_utf8(tmp.name) << ' ' << tmp.inset << ' '
 266                                 << to_utf8(tmp.extra));
 267                         continue;
 268                 }
 269
 270                 if (isFontName(tmp.inset)) {
 271                         // tmp.inset _is_ the fontname here.
 272                         // create fallbacks if necessary
 273
 274                         // store requirements as long as we can
 275                         if (tmp.required.empty()) {
 276                                 if (tmp.inset == "msa" || tmp.inset == "msb")
 277                                         tmp.required = "amssymb";
 278                                 else if (tmp.inset == "wasy")
 279                                         tmp.required = "wasysym";
 280                                 else if (tmp.inset == "mathscr")
 281                                         tmp.required = "mathrsfs";
 282                                 else if (tmp.inset == "mathds")
 283                                         tmp.required = "dsfont";
 284                         }
 285
 286                         // symbol font is not available sometimes
 287                         string symbol_font = "lyxsymbol";
 288                         char_type unicodesymbol = 0;
 289
 290                         if (tmp.extra == "func" || tmp.extra == "funclim" || tmp.extra == "special") {
 291                                 LYXERR(Debug::MATHED, "symbol abuse for " << to_utf8(tmp.name));
 292                                 tmp.draw = tmp.name;
 293                         } else if (isMathFontAvailable(tmp.inset) && canBeDisplayed(charid)) {
 294                                 LYXERR(Debug::MATHED, "symbol available for " << to_utf8(tmp.name));
 295                                 tmp.draw.push_back(char_type(charid));
 296                                 if (dsp_charid && canBeDisplayed(dsp_charid)) {
 297                                         LYXERR(Debug::MATHED, "large symbol available for " << to_utf8(tmp.name));
 298                                         tmp.dsp_draw.push_back(char_type(dsp_charid));
 299                                 }
 300                         } else if (fallbackid && isMathFontAvailable(symbol_font) &&
 301                                    canBeDisplayed(fallbackid)) {
 302                                 if (tmp.inset == "cmex")
 303                                         tmp.inset = "lyxsymbol";
 304                                 else
 305                                         tmp.inset = "lyxboldsymbol";
 306                                 LYXERR(Debug::MATHED, "symbol fallback for " << to_utf8(tmp.name));
 307                                 tmp.draw.push_back(char_type(fallbackid));
 308                         } else if (isUnicodeSymbolAvailable(tmp.name, unicodesymbol)) {
 309                                 LYXERR(Debug::MATHED, "unicode fallback for " << to_utf8(tmp.name));
 310                                 tmp.inset = "mathnormal";
 311                                 tmp.draw.push_back(unicodesymbol);
 312                         } else {
 313                                 LYXERR(Debug::MATHED, "faking " << to_utf8(tmp.name));
 314                                 tmp.draw = tmp.name;
 315                                 tmp.inset = "lyxtex";
 316                         }
 317                 } else {
 318                         // it's a proper inset
 319                         LYXERR(Debug::MATHED, "inset " << tmp.inset
 320                                               << " used for " << to_utf8(tmp.name));
 321                 }
 322
 323                 if (tmp.required == "hiddensymbol")
 324                 {
 325                         tmp.required = "";
 326                         tmp.hidden = true;
 327                 }
 328
 329                 if (theMathWordList.find(tmp.name) != theMathWordList.end())
 330                         LYXERR(Debug::MATHED, "readSymbols: inset " << to_utf8(tmp.name)
 331                                 << " already exists.");
 332                 else
 333                         theMathWordList[tmp.name] = tmp;
 334
 335                 // If you change the following output, please adjust
 336                 // development/tools/generate_symbols_images.py.
 337                 LYXERR(Debug::MATHED, "read symbol '" << to_utf8(tmp.name)
 338                         << "  inset: " << tmp.inset
 339                         << "  draw: " << int(tmp.draw.empty() ? 0 : tmp.draw[0])
 340                         << "  extra: " << to_utf8(tmp.extra)
 341                         << "  html: " << to_utf8(tmp.htmlname)
 342                         << "  xml: " << to_utf8(tmp.xmlname)
 343                         << "  requires: " << tmp.required
 344                         << "  hidden: " << tmp.hidden << '\'');
 345         }
 346         string tmp = "cmm";
 347         string tmp2 = "cmsy";
 348         has_math_fonts = isMathFontAvailable(tmp) && isMathFontAvailable(tmp2);
 349 }
 350
 351
 352 bool isSpecialChar(docstring const & name)
 353 {
 354         if (name.size() != 1)
 355                 return  name == "textasciicircum" || name == "mathcircumflex" ||
 356                         name == "textasciitilde"  || name == "textbackslash";
 357
 358         char_type const c = name.at(0);
 359         return  c == '{' || c == '}' || c == '&' || c == '$' ||
 360                 c == '#' || c == '%' || c == '_';
 361 }
 362
 363
 364 } // namespace
 365
 366 MathWordList const & mathedWordList()
 367 {
 368         return theMathWordList;
 369 }
 370
 371
 372 void initMath()
 373 {
 374         static bool initialized = false;
 375         if (!initialized) {
 376                 initialized = true;
 377                 initParser();
 378                 initSymbols();
 379         }
 380 }
 381
 382
 383 bool ensureMath(WriteStream & os, bool needs_mathmode, bool macro,
 384                 bool textmode_macro)
 385 {
 386         bool brace = os.pendingBrace();
 387         os.pendingBrace(false);
 388         if (!os.latex())
 389                 return brace;
 390         if (os.textMode() && needs_mathmode) {
 391                 if (brace) {
 392                         // close \lyxmathsym
 393                         os << '}';
 394                         brace = false;
 395                 } else {
 396                         os << "\\ensuremath{";
 397                         brace = true;
 398                 }
 399                 os.textMode(false);
 400         } else if (macro && textmode_macro && !os.textMode()) {
 401                 if (brace) {
 402                         // close \ensuremath
 403                         os << '}';
 404                         brace = false;
 405                 } else {
 406                         os << "\\lyxmathsym{";
 407                         brace = true;
 408                 }
 409                 os.textMode(true);
 410         } else if (macro && brace && !needs_mathmode && !textmode_macro) {
 411                 // This is a user defined macro, not a InsetMathMacro, so we
 412                 // cannot be sure what mode is needed. We leave it in the
 413                 // same environment it was entered by closing either \lyxmathsym
 414                 // or \ensuremath, whichever was opened.
 415                 os << '}';
 416                 brace = false;
 417                 os.textMode(!os.textMode());
 418         }
 419         return brace;
 420 }
 421
 422
 423 int ensureMode(WriteStream & os, InsetMath::mode_type mode,
 424                 bool locked, bool ascii)
 425 {
 426         bool textmode = mode == InsetMath::TEXT_MODE;
 427         if (os.latex() && textmode && os.pendingBrace()) {
 428                 os.os() << '}';
 429                 os.pendingBrace(false);
 430                 os.pendingSpace(false);
 431                 os.textMode(true);
 432         }
 433         int oldmodes = os.textMode() ? 0x01 : 0;
 434         os.textMode(textmode);
 435         oldmodes |= os.lockedMode() ? 0x02 : 0;
 436         os.lockedMode(locked);
 437         oldmodes |= os.asciiOnly() ? 0x04 : 0;
 438         os.asciiOnly(ascii);
 439         return oldmodes;
 440 }
 441
 442
 443 latexkeys const * in_word_set(docstring const & str)
 444 {
 445         MathWordList::iterator it = theMathWordList.find(str);
 446         if (it == theMathWordList.end())
 447                 return 0;
 448         if (it->second.inset == "macro")
 449                 return 0;
 450         return &(it->second);
 451 }
 452
 453
 454 MathAtom createInsetMath(char const * const s, Buffer * buf)
 455 {
 456         return createInsetMath(from_utf8(s), buf);
 457 }
 458
 459
 460 MathAtom createInsetMath(docstring const & s, Buffer * buf)
 461 {
 462         //lyxerr << "creating inset with name: '" << to_utf8(s) << '\'' << endl;
 463         if ((s == "ce" || s == "cf") && buf
 464             && buf->params().use_package("mhchem") == BufferParams::package_off)
 465                 return MathAtom(new InsetMathMacro(buf, s));
 466
 467         latexkeys const * l = in_word_set(s);
 468         if (l) {
 469                 string const & inset = l->inset;
 470                 //lyxerr << " found inset: '" << inset << '\'' << endl;
 471                 if (inset == "ref")
 472                         return MathAtom(new InsetMathRef(buf, l->name));
 473                 if (inset == "overset")
 474                         return MathAtom(new InsetMathOverset(buf));
 475                 if (inset == "underset")
 476                         return MathAtom(new InsetMathUnderset(buf));
 477                 if (inset == "decoration")
 478                         return MathAtom(new InsetMathDecoration(buf, l));
 479                 if (inset == "space")
 480                         return MathAtom(new InsetMathSpace(to_ascii(l->name), ""));
 481                 if (inset == "class")
 482                         return MathAtom(new InsetMathClass(buf, string_to_class(s)));
 483                 if (inset == "dots")
 484                         return MathAtom(new InsetMathDots(l));
 485                 if (inset == "mbox")
 486                         return MathAtom(new InsetMathBox(buf, l->name));
 487 //              if (inset == "fbox")
 488 //                      return MathAtom(new InsetMathFBox(l));
 489                 if (inset == "style")
 490                         return MathAtom(new InsetMathSize(buf, l));
 491                 if (inset == "font")
 492                         return MathAtom(new InsetMathFont(buf, l));
 493                 if (inset == "oldfont")
 494                         return MathAtom(new InsetMathFontOld(buf, l));
 495                 if (inset == "matrix")
 496                         return MathAtom(new InsetMathAMSArray(buf, s));
 497                 if (inset == "split")
 498                         return MathAtom(new InsetMathSplit(buf, s));
 499                 if (inset == "big")
 500                         // we can't create a InsetMathBig, since the argument
 501                         // is missing.
 502                         return MathAtom(new InsetMathUnknown(s));
 503                 return MathAtom(new InsetMathSymbol(l));
 504         }
 505
 506         if (s.size() == 2 && s[0] == '#' && s[1] >= '1' && s[1] <= '9')
 507                 return MathAtom(new InsetMathMacroArgument(s[1] - '0'));
 508         if (s.size() == 3 && s[0] == '\\' && s[1] == '#'
 509                         && s[2] >= '1' && s[2] <= '9')
 510                 return MathAtom(new InsetMathMacroArgument(s[2] - '0'));
 511         if (s == "boxed")
 512                 return MathAtom(new InsetMathBoxed(buf));
 513         if (s == "fbox")
 514                 return MathAtom(new InsetMathFBox(buf));
 515         if (s == "framebox")
 516                 return MathAtom(new InsetMathMakebox(buf, true));
 517         if (s == "makebox")
 518                 return MathAtom(new InsetMathMakebox(buf, false));
 519         if (s.substr(0, 8) == "xymatrix") {
 520                 char spacing_code = '\0';
 521                 Length spacing;
 522                 bool equal_spacing = false;
 523                 size_t const len = s.length();
 524                 size_t i = 8;
 525                 if (i < len && s[i] == '@') {
 526                         ++i;
 527                         if (i < len && s[i] == '!') {
 528                                 equal_spacing = true;
 529                                 ++i;
 530                                 if (i < len) {
 531                                         switch (s[i]) {
 532                                         case '0':
 533                                         case 'R':
 534                                         case 'C':
 535                                                 spacing_code = static_cast<char>(s[i]);
 536                                         }
 537                                 }
 538                         } else if (i < len) {
 539                                 switch (s[i]) {
 540                                 case 'R':
 541                                 case 'C':
 542                                 case 'M':
 543                                 case 'W':
 544                                 case 'H':
 545                                 case 'L':
 546                                         spacing_code = static_cast<char>(s[i]);
 547                                         ++i;
 548                                         break;
 549                                 }
 550                                 if (i < len && s[i] == '=') {
 551                                         ++i;
 552                                         spacing = Length(to_ascii(s.substr(i)));
 553                                 }
 554                         }
 555                 }
 556                 return MathAtom(new InsetMathXYMatrix(buf, spacing, spacing_code,
 557                         equal_spacing));
 558         }
 559
 560         if (s == "Diagram")
 561                 return MathAtom(new InsetMathDiagram(buf));
 562         if (s == "xrightarrow" || s == "xleftarrow" ||
 563                 s == "xhookrightarrow" || s == "xhookleftarrow" ||
 564                 s == "xRightarrow" || s == "xLeftarrow" ||
 565                 s == "xleftrightarrow" || s == "xLeftrightarrow" ||
 566                 s == "xrightharpoondown" || s == "xrightharpoonup" ||
 567                 s == "xleftharpoondown" || s == "xleftharpoonup" ||
 568                 s == "xleftrightharpoons" || s == "xrightleftharpoons" ||
 569                 s == "xmapsto")
 570                 return MathAtom(new InsetMathXArrow(buf, s));
 571         if (s == "split" || s == "alignedat")
 572                 return MathAtom(new InsetMathSplit(buf, s));
 573         if (s == "cases")
 574                 return MathAtom(new InsetMathCases(buf));
 575         if (s == "substack")
 576                 return MathAtom(new InsetMathSubstack(buf));
 577         if (s == "subarray" || s == "array")
 578                 return MathAtom(new InsetMathArray(buf, s, 1, 1));
 579         if (s == "sqrt")
 580                 return MathAtom(new InsetMathSqrt(buf));
 581         if (s == "root")
 582                 return MathAtom(new InsetMathRoot(buf));
 583         if (s == "tabular")
 584                 return MathAtom(new InsetMathTabular(buf, s, 1, 1));
 585         if (s == "stackrel")
 586                 return MathAtom(new InsetMathStackrel(buf, false));
 587         // This string value is only for math toolbar use, no LaTeX name
 588         if (s == "stackrelthree")
 589                 return MathAtom(new InsetMathStackrel(buf, true));
 590         if (s == "binom")
 591                 return MathAtom(new InsetMathBinom(buf, InsetMathBinom::BINOM));
 592         if (s == "dbinom")
 593                 return MathAtom(new InsetMathBinom(buf, InsetMathBinom::DBINOM));
 594         if (s == "tbinom")
 595                 return MathAtom(new InsetMathBinom(buf, InsetMathBinom::TBINOM));
 596         if (s == "choose")
 597                 return MathAtom(new InsetMathBinom(buf, InsetMathBinom::CHOOSE));
 598         if (s == "brace")
 599                 return MathAtom(new InsetMathBinom(buf, InsetMathBinom::BRACE));
 600         if (s == "brack")
 601                 return MathAtom(new InsetMathBinom(buf, InsetMathBinom::BRACK));
 602         if (s == "frac")
 603                 return MathAtom(new InsetMathFrac(buf));
 604         if (s == "cfrac")
 605                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::CFRAC));
 606         if (s == "dfrac")
 607                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::DFRAC));
 608         if (s == "tfrac")
 609                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::TFRAC));
 610         if (s == "over")
 611                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::OVER));
 612         if (s == "nicefrac")
 613                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::NICEFRAC));
 614         if (s == "unitfrac")
 615                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::UNITFRAC));
 616         // These string values are only for math toolbar use, no LaTeX names
 617         if (s == "unitfracthree")
 618                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::UNITFRAC, 3));
 619         if (s == "unitone")
 620                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::UNIT, 1));
 621         if (s == "unittwo")
 622                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::UNIT));
 623         if (s == "cfracleft")
 624                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::CFRACLEFT));
 625         if (s == "cfracright")
 626                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::CFRACRIGHT));
 627         //if (s == "infer")
 628         //      return MathAtom(new MathInferInset);
 629         if (s == "atop")
 630                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::ATOP));
 631         if (s == "lefteqn")
 632                 return MathAtom(new InsetMathLefteqn(buf));
 633         if (s == "boldsymbol")
 634                 return MathAtom(new InsetMathBoldSymbol(buf, InsetMathBoldSymbol::AMS_BOLD));
 635         if (s == "bm")
 636                 return MathAtom(new InsetMathBoldSymbol(buf, InsetMathBoldSymbol::BM_BOLD));
 637         if (s == "heavysymbol" || s == "hm")
 638                 return MathAtom(new InsetMathBoldSymbol(buf, InsetMathBoldSymbol::BM_HEAVY));
 639         if (s == "color" || s == "normalcolor")
 640                 return MathAtom(new InsetMathColor(buf, true));
 641         if (s == "textcolor")
 642                 return MathAtom(new InsetMathColor(buf, false));
 643         if (s == "hphantom")
 644                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::hphantom));
 645         if (s == "phantom")
 646                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::phantom));
 647         if (s == "vphantom")
 648                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::vphantom));
 649         if (s == "cancel")
 650                 return MathAtom(new InsetMathCancel(buf, InsetMathCancel::cancel));
 651         if (s == "bcancel")
 652                 return MathAtom(new InsetMathCancel(buf, InsetMathCancel::bcancel));
 653         if (s == "xcancel")
 654                 return MathAtom(new InsetMathCancel(buf, InsetMathCancel::xcancel));
 655         if (s == "cancelto")
 656                 return MathAtom(new InsetMathCancelto(buf));
 657         if (s == "smash")
 658                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::smash));
 659         // The following 2 string values are only for math toolbar use, no LaTeX names
 660         if (s == "smashb")
 661                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::smashb));
 662         if (s == "smasht")
 663                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::smasht));
 664         if (s == "mathclap")
 665                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::mathclap));
 666         if (s == "mathllap")
 667                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::mathllap));
 668         if (s == "mathrlap")
 669                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::mathrlap));
 670         if (s == "ensuremath")
 671                 return MathAtom(new InsetMathEnsureMath(buf));
 672         if (s == "sideset")
 673                 return MathAtom(new InsetMathSideset(buf, true, true));
 674         // The following 3 string values are only for math toolbar use, no LaTeX names
 675         if (s == "sidesetr")
 676                 return MathAtom(new InsetMathSideset(buf, false, true));
 677         if (s == "sidesetl")
 678                 return MathAtom(new InsetMathSideset(buf, true, false));
 679         if (s == "sidesetn")
 680                 return MathAtom(new InsetMathSideset(buf, false, false));
 681         if (isSpecialChar(s))
 682                 return MathAtom(new InsetMathSpecialChar(s));
 683         if (s == " ")
 684                 return MathAtom(new InsetMathSpace(" ", ""));
 685         if (s == "regexp")
 686                 return MathAtom(new InsetMathHull(buf, hullRegexp));
 687
 688         return MathAtom(new InsetMathMacro(buf, s));
 689 }
 690
 691
 692 bool createInsetMath_fromDialogStr(docstring const & str, MathData & ar)
 693 {
 694         // An example str:
 695         // "ref LatexCommand ref\nreference \"sec:Title\"\n\\end_inset\n\n";
 696         docstring name;
 697         docstring body = split(str, name, ' ');
 698
 699         if (name == "ref") {
 700                 InsetCommandParams icp(REF_CODE);
 701                 // FIXME UNICODE
 702                 InsetCommand::string2params(to_utf8(str), icp);
 703                 Encoding const * const utf8 = encodings.fromLyXName("utf8");
 704                 OutputParams op(utf8);
 705                 mathed_parse_cell(ar, icp.getCommand(op));
 706         } else if (name == "mathspace") {
 707                 InsetSpaceParams isp(true);
 708                 InsetSpace::string2params(to_utf8(str), isp);
 709                 InsetSpace is(isp);
 710                 odocstringstream ods;
 711                 otexstream os(ods);
 712                 Encoding const * const ascii = encodings.fromLyXName("ascii");
 713                 OutputParams op(ascii);
 714                 is.latex(os, op);
 715                 mathed_parse_cell(ar, ods.str());
 716                 if (ar.size() == 2) {
 717                         // remove "{}"
 718                         if (ar[1].nucleus()->asBraceInset())
 719                                 ar.pop_back();
 720                 }
 721         } else
 722                 return false;
 723
 724         if (ar.size() != 1)
 725                 return false;
 726
 727         return ar[0].nucleus();
 728 }
 729
 730
 731 } // namespace lyx